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Day: August 13, 2026

Chapter 4: The Journey of a Dark Spot — From Sunlight to Visible Pigmentation

A dark spot is not created by one enzyme or one event. It is the visible result of a chain reaction involving environmental stress, oxidative damage, inflammatory signaling, melanocyte activation, tyrosinase, melanosome maturation and pigment transfer. In this chapter, cosmetic chemist Maya Williams follows the complete journey of a dark spot and explains why multi-target ingredients such as trans-resveratrol are changing the way we think about hyperpigmentation.

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